Treatments with nirogacestat

1. A method for therapeutic treatment of desmoid tumor in a patient in need thereof comprising orally administering to the patient 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof twice daily, wherein the method comprises one or more of:

(a) upon the patient having a Grade 3 folliculitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the folliculitis is resolved to no higher than a Grade 1 folliculitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;

(b) upon the patient having a Grade 3 maculopapular rash, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the maculopapular rash is resolved to no higher than a Grade 1 maculopapular rash or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;

(c) upon the patient having a Grade 3 hidradenitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the hidradenitis is resolved to no higher than a Grade 1 hidradenitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily; and

(d) upon the patient having an alanine transaminase (ALT) or aspartate aminotransferase (AST) of 3 to 5 times upper limit of normal (ULN), withholding the nirogacestat or pharmaceutically acceptable salt thereof until the ALT, AST, or both are resolved to no higher than 3 times ULN or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily, wherein the method comprises (d) upon the patient having an ALT or AST of 3 to 5 times ULN, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the ALT, AST, or both are resolved to no higher than 3 times ULN or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily.

2. The method of claim 1 , further comprising one or more of:

(e) upon the patient having an ALT or AST of greater than 5 times ULN, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof;

(f) upon the patient having anaphylaxis or other severe hypersensitivity reaction, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof; and

(g) for another severe adverse reaction or in the event of a life-threatening adverse reaction, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the adverse reaction is resolved to no higher than a Grade 1 adverse reaction or baseline and then, after considering the potential benefit and likelihood recurrence of the adverse reaction, (A) restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily and (B) upon recurrence of the severe or life-threatening adverse reaction at the 100 mg (free base equivalent dose) twice daily dose, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof.

3. The method of claim 1 , wherein the method comprises (a) upon the patient having a Grade 3 folliculitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the folliculitis is resolved to no higher than a Grade 1 folliculitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily.

4. The method of claim 1 , wherein the method comprises (b) upon the patient having a Grade 3 maculopapular rash, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the maculopapular rash is resolved to no higher than a Grade 1 maculopapular rash or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily.

5. The method of claim 1 , wherein the method comprises (c) upon the patient having a Grade 3 hidradenitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the hidradenitis is resolved to no higher than a Grade 1 hidradenitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily.

6. A method for therapeutic treatment of desmoid tumor in a patient in need thereof comprising orally administering to the patient 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof twice daily, wherein the method comprises one or more of:

(a) upon the patient having a Grade 3 folliculitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the folliculitis is resolved to no higher than a Grade 1 folliculitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;

(b) upon the patient having a Grade 3 maculopapular rash, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the maculopapular rash is resolved to no higher than a Grade 1 maculopapular rash or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;

(c) upon the patient having a Grade 3 hidradenitis, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the hidradenitis is resolved to no higher than a Grade 1 hidradenitis or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily; and

(d) upon the patient having an alanine transaminase (ALT) or aspartate aminotransferase (AST) of 3 to 5 times upper limit of normal (ULN), withholding the nirogacestat or pharmaceutically acceptable salt thereof until the ALT, AST, or both are resolved to no higher than 3 times ULN or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily, wherein the method further comprises (e) upon the patient having an ALT or AST of greater than 5 times ULN, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof.

7. The method of claim 1 , wherein the method further comprises (f) upon the patient having anaphylaxis or other severe hypersensitivity reaction, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof.

8. The method of claim 1 , wherein the method comprises:

(d) upon the patient having an ALT or AST of 3 to 5 times ULN, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the ALT, AST, or both are resolved to no higher than 3 times ULN or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily; and the method further comprises:

(e) upon the patient having an ALT or AST of greater than 5 times ULN, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof.

9. The method of claim 1 , wherein upon the patient having a Grade 3 dermatologic reaction, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the dermatologic reaction is resolved to no higher than a Grade 1 dermatologic reaction and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily.

10. The method of claim 1 , wherein the patient has a mutation in the adenomatous polyposis coli (APC) tumor suppressor gene.

11. The method of claim 1 , wherein the patient has a mutation in the CTNNB1 ((3-catenin) gene.

12. The method of claim 1 , wherein the patient was previously treated with a tyrosine kinase inhibitor.

13. The method of claim 1 , wherein the patient has intraabdominal tumors.

14. The method of claim 1 , wherein the patient is an adult.

15. The method of claim 1 , wherein the patient has refractory or recurrent disease after previous treatment.

16. The method of claim 1 , wherein the patient is a post-menopausal woman.

17. The method of claim 1 , wherein the nirogacestat or pharmaceutically acceptable salt thereof is nirogacestat dihydrobromide.

18. The method of claim 1 , wherein the patient, after initial administration of 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof, exhibits a C max of nirogacestat of from about 480 to about 950 ng/mL.

19. The method of claim 1 , wherein the patient, after initial administration of 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof, exhibits an AUC last of nirogacestat of less than 4000 ng·h/mL.

20. The method of claim 1 , wherein the patient, after initial administration of 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof, exhibits an AUCiast of nirogacestat of from about 2000 to about 4000 ng·h/mL.

21. The method of claim 1 , wherein the patient exhibits, at steady state exposure from administration of 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof twice daily, a C max of nirogacestat of from about 1000 to 1500 ng/mL.

22. The method of claim 1 , wherein the patient exhibits, at steady state exposure from administration of 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof twice daily, an AUCtau of nirogacestat of from about 5000 to about 8000 ng·h/mL.